Finding the Fourth Proportional to 77,698.14, 107,232.91 and 43,708.06
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Solution
The fourth proportional to 77,698.14, 107,232.91 and 43,708.06 is: 60,322.45
Step by Step Solution
- Step 1: Write the proportion equation
77,698.14 : 107,232.91 = 43,708.06 : x - Step 2: Convert to fraction form
77,698.14/107,232.91 = 43,708.06/x - Step 3: Cross multiply
77,698.14x = 107,232.91 × 43,708.06 - Step 4: Simplify right side
77,698.14x = 4,686,942,131.70 - Step 5: Solve for x
x = 4,686,942,131.70/77,698.14 - Step 6: Final answer
x = 60,322.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.